What is Acromion?

Acromion is the extension of the spine of the scapula. Acromion articulates with the clavicle or the collarbone of the pectoral girdle by the acromioclavicular joint.


The acromion is a part of the scapula bone or shoulder blade of the pectoral girdle. It is a bony process.

There is an elevated ridge present on the dorsal surface of the scapula bone, which is known as the spine. The spine divides the dorsal surface of the scapula into two unequal parts. The spine projects out laterally as a flat process known as the acromion, which is curved upwards.

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